This is another approach towards face recognition. In
this
we are making use of the Line Drawing method. I am
summarizing the entire process in a few steps. I am
looking towards your initial response to this approach.

Store the Original Face images in a database
1. Convert the Face photo to Line Drawing (black and white)
2. Draw a Rectangle around the Line Drawing touching all
the four sides
3. Number each pixel in the Rectangle in sequential order
from left to right
4. Get the Number (assigned in the previous step) of each
black pixel in the Rectangle except the Rectangle itself
5. Sum up all those Numbers
6. This sum represents the Face and store it in your
database

Compare a Face against the Original Face Database
1. Scale the image to the same size as the original image
2. Follow the above steps to get a numerical
representation of the Target Face
3. Define an acceptable +/- variation between the Original
Face value and Target Face value
4. Compare this Target Face value against the Original
Face Value in the database and see whether it is in the
acceptable range

Advantages
1. This will make the process faster since we are
comparing numerical values
2. It is very simple to understand

Disadvantages
1. Rectangle drawn for the Original Face image and Target
Face image should be nearly identical. Other wise there
will be large variation in the Face value
2. Hair style may have an impact on the Face value, but
this again depends on the efficiency of the Line
Drawing.